Product $(B)$ is :

In the given compound,how many functional groups are reduced by $LiAlH_4$ (Lithium aluminium hydride) and $NaBH_4$ (Sodium borohydride) respectively? (Assume the compound contains an ester,an acid,a ketone,and an aldehyde group).

The tests performed on compound $X$ and their inferences are:

Test	Inference
$(a)$ $2, 4-DNP$ test	Coloured precipitate
$(b)$ Iodoform test	Yellow precipitate
$(c)$ Azo-dye test	No dye formation

Compound $X$ is:

Which among the following is a possible product during cross aldol condensation between propanal (as electrophile) and butanal (as nucleophile)?

Which of the following will form a stable hydrate?

Assertion $(A)$: Ammonia and its derivatives of the form $H_2N-Z$ undergo condensation reaction with carbonyl compounds (aldehydes and ketones).
Reason $(R)$: This reaction is an example of an irreversible reaction.
The correct option among the following is: